'I'm just thinking about people I'm gonna fire': Anderson Cooper red-faced after childhood photo pops up on screen during Bieber report

By Jennifer Madison

Last updated at 9:24 PM on 10th May 2011

He's known for his cool composure on CNN newscasts, but Anderson Cooper struggled to keep a straight face last night when he became the target of an on-air prank.

Cooper, who anchors AC360, was visibly flustered when an embarrassing childhood photo appeared on screen during a report about Justin Bieber.

The journalist, 43, joked with staff: 'I'm just thinking about people I'm gonna fire.'
Embarrassing: This photo of Anderson Cooper, aged nine, randomly appeared on air yesterday during a report about Justin Bieber on AC360

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Embarrassing: This photo of Anderson Cooper, aged nine, randomly appeared on air yesterday during a report about Justin Bieber on AC360

Cooper and British news anchor Isha Sesay were discussing how CSI star Marg Helgenberger called Bieber a brat, when a picture of the journalist appeared on the screen instead of Bieber.